On 11 November 2020, Mongolia reported its first case of local transmission of COVID-19. As of 15 November 2020, the country had reported a cumulative number of 428 cases since the beginning of the outbreak in January 2020. The State Emergency Commission (SEC) has identified three clusters: in the capital city of Ulaanbaatar (UB) originating from a truck driver; at the National Center for Communicable Diseases (NCCD) (one case); and among health personnel at COVID-19 quarantine facilities. The confirmed positive cases among health workers is of concern because it may lead to a shortage of health personnel and the disruption of health services.